soybean production insects and diseases soy uses farm business management extension publications

Soybean Insects

Bean Leaf Beetle management recommendations

Soybean Aphids - everything you need to know.

Foliar Injury and Disease

Anthracnose

Bacterial blight

Brown spot - Septoria

Cercospora leaf spot

Downy mildew

Frogeye leaf spot

Powdery Mildew

Rust - Asian Soybean Rust

Stem and Root Diseases


 Early to mid season

Damping off and root rot

Phytophthora stem and root rot

Rhizoctonia root rot

 Late season to harvest

Brown stem rot

Charcoal rot

Phytophthora stem and root rot

Pod and stem blight

Sclerotinia stem rot (white         mold)     

Sudden Death Syndrome

Seed and Seedling Diseases


Damping off (seedling blight) and seed decay are caused by different pathogens, depending on the weather and soil conditions.

Fungicide seed treatments

Phomopsis pod and stem blight

Soybean Viruses


Bean Pod Mottle Virus

Soybean Mosaic Virus


Soybean Cyst Nematode   


Soybean Cyst Nematode - everything you need to know.

Why do we continue to avoid SCN?

2006 SCN-resistant Soybean Variety Trial Report (pdf)

Troubleshooting


Link to ISU Plant Disease Clinic

ISU Entomology Image Gallery - soybean

Related Links

University of Wisconsin Soybean Plant Health web site.

Plant Health Initiative - a regional web site on soybean plant health.

   Last Update: 7/17/07

Copyright 2003-2008. Palle Pedersen, Iowa State University Extension.
Please contact us with questions and comments.